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Finding the Fourth Proportional to 29,017.69, 40,052.96 and 18,947.69

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Solution

The fourth proportional to 29,017.69, 40,052.96 and 18,947.69 is: 26,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.69 : 40,052.96 = 18,947.69 : x
  2. Step 2: Convert to fraction form
    29,017.69/40,052.96 = 18,947.69/x
  3. Step 3: Cross multiply
    29,017.69x = 40,052.96 × 18,947.69
  4. Step 4: Simplify right side
    29,017.69x = 758,911,102.49
  5. Step 5: Solve for x
    x = 758,911,102.49/29,017.69
  6. Step 6: Final answer
    x = 26,153.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.